Hyperlink in moderncv with acrobat reader

Actually, I face exactly the same issue with Adobe Acrobat Reader 9.

The url works in other pdf readers, but not in adobe.

I think you gotta update the Adobe Acrobat Reader to a higher version (>10).

On the moderncv.cls file I removed the baseurl= http:// option under hypersetup and it worked. I'm not sure why but it did.

I ran into the same issue with Adobe Acrobat 9 and Acrobat X Pro on two different computers. Strangely, I did not encounter an error using TeXstudio's internal PDF viewer -- the links work as is.

I started with this MWE based on the one in the question:

documentclass[11pt,a4paper]{moderncv}

moderncvtheme[grey]{classic}
firstname{Test}
familyname{Test}

begin{document}

cventry{2012}{test}{test}{texttt{href{http://www.google.com}{http://www.google.com}}}{}{}

end{document}

When attempting to click a link using Acrobat I receive the following error:

I found an alternate solution based on an1234's answer: add AtBeginDocument{hypersetup{baseurl={}}} in the preamble (you can also add other options like colorlinks). Acrobat no longer generates the error with the fixed MWE:

documentclass[11pt,a4paper]{moderncv}

moderncvtheme[grey]{classic}
firstname{Test}
familyname{Test}

AtBeginDocument{hypersetup{baseurl={}}}

begin{document}

cventry{2012}{test}{test}{texttt{href{http://www.google.com}{http://www.google.com}}}{}{}

end{document}

I think this solution is preferable since you don't have to modify the moderncv.cls file.